Truck box bed rail guard



FIG. 1 is a perspective view of the truck box bed rail guard mounted on a truck box;

FIG. 2 is a perspective view showing the top and inside of the truck box bed rail guard;

FIG. 3 is a top plan view of the truck box bed rail guard;

FIG. 4 is a bottom view of the truck box bed rail guard;

FIG. 5 is a side elevational view of a first side of the truck box bed rail guard;

FIG. 6 is a side elevational view of a second side of the truck box bed rail guard;

FIG. 7 is a rear end view of the truck box bed rail guard; and,

FIG. 8 is a front end view of the truck box bed rail guard.

In FIG. 1, the broken lines show a truck and form no part of the claimed design. 

The ornamental design for a truck box bed rail guard, shown and described. 